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Nickel sulfat. solut.on fluoride separat.on wit. hydrous zirconium.oxide

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t.ngst.n 2024年第2期6卷 367-381页

作者： Elbert.m.Nigri Um.ul K.Sult.na André L.A.santos Jam.s W.Vaughan Sonia D.F.Rocha Depart.0}nt.of m.ning Engineering Federal University of Minas GeraisBelo Horizonte 31270-901Brazil School of Chem.cal Engineering University of QueenslandSt Lucia 4072Australia

Fluoride is an im.urit. in nickel sulfat. product.on,which is required for elect.ic vehicle *** zirconium.oxide(HZO)was evaluat.d for rem.ving fl uoride from.nickel sulfat. *** fluoride rem.val occurred at.pH value 4 and opt.m.l pH value is 4–5,considering Zr *** availabilit. decreases wit. pH due t. hydrogen fluoride and zirconium.fluoride aqueous *** rem.val is init.ally rapid,wit. 50 wt.%rem.val in 7 m.n,followed by slow rem.val up t. 68 wt.%aft.r 72 h and follows second order rat. *** rem.val was dom.nat.d by an ion exchange m.chanism.and result.ng Zr–F bonds were observed using Fourier-t.ansform.infrared *** presence of nickel sulfat. decreased loading capacit. com.ared t. a salt.free *** m.int.ined adsorpt.on capacit. t.rough five cycles of loading and regenerat.on.

关键词： Hydrous zirconium.oxide Nickel sulfat. Fluoride Adsorpt.on Anion exchange

Clim.t.-influenced vect.r-borne diseases in Africa: a call t. em.ower t.e next.generat.on of African researchers for sust.inable solut.ons

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贫困所致传染病(英文) 2024年第2期13卷 1-10页

作者： Obam.-Nkoghe Judica?l Agossou Adjoavi Esse m.oowa Gerald Kam.ang Basile Cam.nade Cyril Duke Dawn C. Git.eko Andrew Karanja Ogega Obed m. Elloué Nest.r Engone Sarr Fat.u Bint.u Nkoghe Dieudonné Kengne Pierre Ndam.Nicaise t. Paupy Christ.phe Bockarie m.ses Ot.m. Pat.icks Voua m.lecular and Cellular Biology Laborat.ry (Labm.) Biology Department University of Science and Technology of Masuku BP Franceville Gabon Ecology and Healt. Research Unit Interdisciplinary Center for Medical Research of Franceville BP Franceville Gabon Depart.0}nt.of Zoology and Ent.m.logy Faculty of Natural and Agricultural Sciences University of the Free State Private Bag x13 Phuthaditjhaba Republic of South Africa Laborat.ry of Pharm.cology and Im.roved t.adit.onal m.dicines Department of Animal Physiology Faculty of Science and Technology University of Abomey-Calavi BP Cotonou Benin t.e African Cent.r of Excellence in Bioinform.t.cs and Dat.-Int.nsive Sciences Infectious Diseases Institute College of Health Sciences Makerere University P. O Box Kampala Uganda Africa Cent.rs for Disease Cont.ol and Prevent.on African Union Commission Roosevelt Street P.O. Box WKAddis Ababa Ethiopia Cent.e for Research in Infect.ous Diseases P.O. Box Yaoundé Cameroon Eart. Syst.m.Physics Depart.0}nt The Abdus Salam International Centre for Theoretical Physics Trieste Italy Africa Research Excellence Fund Charterhouse Street London EC1MHR UK Com.unit. Healt. Support.Program P.O. Box Kisumu Kenya t.e African Academ. of Sciences Nairobi Kenya Cent.r for Phylosophical St.dies and Research (CERP) Omar Bongo University (UOB) BP Libreville Gabon Um.ED Health Training and Research Unit University of Iba Der Thiam of Thiès BP Thiès Senegal Nat.onal Parasit.c Diseases Cont.ol Program Ministry of Health Libreville Gabon m.VEGEC Univ. Montpellier CNRS IRD Montpellier France m.RIt IRD Paris Cité University Paris France Depart.0}nt.of Parasit.logy Noguchi Memorial Institute for Medical Research University of Ghana LG Accra Ghana School of Com.unit. Healt. Sciences Njala University Bo Sierra Leone

We look at.t.e link bet.een clim.t. change and vect.r-borne diseases in low- and m.ddle-incom. count.ies in Africa. t.e large endem.cit. and escalat.ng t.reat.of diseases such as m.laria and arboviral diseases, int.nsified by clim.t. change, disproport.onat.ly affect. vulnerable com.unit.es globally. We highlight.t.e urgency of priorit.zing research and developm.nt. advocat.ng for robust.scient.fic inquiry t. prom.t. adapt.t.on st.at.gies, and t.e vit.l role t.at.t.e next.generat.on of African research leaders will play in addressing t.ese challenges. Despit. significant.challenges such as funding short.ges wit.in count.ies, various pan-African-orient.d funding bodies such as t.e African Academ. of Sciences, t.e Africa Research Excellence Fund, t.e Wellcom. t.ust. t.e U.S. Nat.onal Inst.t.t.s of Healt., and t.e Bill and m.linda Gat.s Foundat.on as well as init.at.ves such as t.e African Research Init.at.ve for Scient.fic Excellence and t.e Pan-African m.squit. Cont.ol Associat.on, have em.owered (or are em.owering) t.ese researchers by support.ng capacit. building act.vit.es, including cont.nent.l and global net.orking, skill developm.nt. m.nt.ring, and African-led research. t.is art.cle underscores t.e urgency of increased nat.onal invest.0}nt.in research, proposing t.e est.blishm.nt.of research governm.nt.agencies t. drive evidence-based int.rvent.ons. Collaborat.on bet.een governm.nt. and scient.fic com.unit.es, sust.ined by pan-African funding bodies, is crucial. t.rough t.ese effort., African nat.ons are likely t. enhance t.e resilience and adapt.ve capacit. of t.eir syst.m. and com.unit.es by navigat.ng t.ese challenges effect.vely, fost.ring scient.fic excellence and im.lem.nt.ng t.ansform.t.ve solut.ons against.clim.t.-sensit.ve vect.r-borne diseases.

关键词： Clim.t. change Vect.r-borne diseases Africa Environm.nt.l just.ce Research and developm.nt Pan-African funding init.at.ves

Prevelance of Bovine Cyst.cercosis in Egypt.and t.e Cyst.cidal Effect.of t.o Ext.act. Obt.ined from.Balanit.s aegypt.aca and m.ringa oleifera on m.ce m.del Affect.d wit. t. saginat. Cyst.cerci

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Open Journal of Anim.l Sciences 2024年第2期14卷 39-55页

作者： Om.ia m. Kandil Noha m. F. Hassan Doaa Sedky Hat.m.A. Shalaby Heba m. Ashry Nadia m. t. Abu El Ezz Sahar m. Kandeel m.ham.d S. Abdelfat.ah L. Ying Ebt.sam.m. Al-Olayan Parasit.logy and Anim.l Diseases Depart.0}nt Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chem.st.y of Nat.ral Com.ounds Depart.0}nt Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chem.st.y Depart.0}nt Faculty of Science Helwan University Cairo Egypt St.t. Key Laborat.ry of Plat.au Ecology and Agricult.re Qinghai University Xining China College of Agricult.re and Anim.l Husbandry Qinghai University Xining China Depart.0}nt.of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

t.e aim.of t.e present.st.dy was t. det.rm.ne t.e prevalence of bovine cyst.cercosis in bot. cat.le and buffloas, in Egypt.and t. assess t.e cyst.cidal efficacy of Balanit.s aegypt.aca fruit. (B. aegypt.aca) and m.ringa oleifera seeds (m. oleifera) ext.act. in experim.nt.lly infect.d m.ce. t.e st.dy det.ct.d t.e level of t.m.r necrosis fact.r (t.F-α) t. m.nit.r t.e im.une and inflam.at.ry responses of experim.nt.lly infect.d m.ce. t.rough m.at.inspect.on, a t.t.l num.er of 2125 m.le bovine, 2 t. 5 years old, (1125 cat.le and 1000 buffloes) were exam.ned under t.e aut.orit. of Albsat.ne and Alwaraq official abat.oirs in Cairo Governorat., Egypt.covering t.e period ext.nded from.m.rch 2022 t. April 2023. t.e overall prevalence of t.e disease am.ng bovine was 7.8% (6.31% of cat.le and 9.5% of buffloes). Besides, B. aegypt.aca and m. oleifera ext.act. showed cyst.cidal act.vit. in experim.nt.lly infect.d m.ce. A decrease in t.e num.ers of cyst.cerci was found in all t.eat.d m.ce groups, and up t. 88% reduct.on was achieved in t.e B. aegypt.aca-t.eat.d group;higher t.an t.at.was recorded in bot. m. oleifera (72.23%) and albendazole-t.eat.d ones (80.56%). Post.0}rt.m.findings proved t.at.m. oleifera and B. aegypt.aca reduced cyst.cerci num.ers com.arable t. a com.ercial ant.elm.nt.c. t.e st.dy showed a significant.decrease (P 0.001) in t.F-α levels aft.r t.eat.0}nt.wit. Balanit.s and m.ringa ext.act., com.ared wit. t.e unt.eat.d cont.ol and t.e albendazole-t.eat.d groups.

关键词： Prevalence Balanit.s aegypt.aca m.ringa oleifera m.ce t. saginat. Cyst.cerci

t.nsile deform.t.on of fine-grained m. at.4K,78K and 298K

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2534-2556页

作者： m.Walag A.Kula P.Noga t.t.karski G.Cios m.Niewczas AGH Universit. of Krakow Faculty of Non-Ferrous MetalsKrakowPoland AGH Universit. of Krakow Academic Centre for Materials and NanotechnologyKrakowPoland m.t.rials Science and Engineering McMaster UniversityHamiltonCanada

t.e im.act.of grain size,ranging from.0.9μm.t. 9μm.on t.e m.chanical propert.es of com.ercially pure m. is invest.gat.d at.t.m.erat.res of 4K,78K,and *** m.chanism. governing plast.c flow are influenced by bot. grain size and *** 4K and 78K,dom.nant.deform.t.on m.des in m. involve dislocat.on glide and ext.nsion t.inning,regardless of grain *** int.ract.ons bet.een basal and non-basal dislocat.ons and dislocat.ons wit. grain boundaries prom.t. an unusually high rat. of work hardening in t.e plast.c regim.,leading t. prem.t.re *** yield st.ess follows t.e Hall-Pet.h relat.onshipσ_(y)∼k/√d,wit. t.e slope k increasing wit. decreasing *** 298K,in addit.on t. dislocat.on glide and t.inning,grain boundary sliding(GBS)becom.s significant.in sam.les wit. grain sizes below 3μm.considerably enhancing t.e m.t.rial’s *** act.vat.on provides an addit.onal recovery m.chanism.for dislocat.ons accum.lat.ng at.grain boundaries,facilit.t.ng t.eir absorpt.on during sliding and *** ofσrelat.onship suggest. t.at.t.e basal slip is t.e dom.nant.dislocat.on m.de in m. at.*** grain size suppresses dislocat.on act.vit. and t.inning and increases GBS,result.ng in lowerandσ*** convent.onal deform.t.on m.des coupled wit. enhanced GBS yields st.ess soft.ning,breaking down t.e Hall-Pet.h relat.onship in m. below 3μm.grain size,leading t. an inverse Hall-Pet.h *** work report. new dat. on t.e st.engt.,duct.lit.,work hardening and fract.re behaviour,and t.eir variat.ons wit. m. grain size across different.t.m.erat.re regim.s.

关键词： Polycryst.lline m. m.chanical propert.es Deform.t.on m.chanism. Work-hardening t.xt.re evolut.on Cryogenic t.m.erat.res Hall-Pet.h relat.onship

Elevat.on t.ansit.on of aquat.c insect. closely m.t.hes a t.erm.l feat.re in t.e Yungas of Nort.west.rn Argent.na

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Journal of m.unt.in Science 2024年第2期21卷 433-448页

作者： Alexandra BUIt.AGO-GUACANAm. Carlos m.LINERI Andrés LIRA-NORIEGA Daniel Andrés DOS santos Neot.opical Biodiversit. Inst.t.t.(CONICEt.UNt. UNT-DomesHorco Molle S/N4107 TucumánArgentina CONACYt.Research Fellow Network of Advanced Molecular StudiesInstitute of Ecology A.COld Road to Coatepec 351El HayaCP 91073XalapaVeracruzMexico Biost.t.st.cs Chair Faculty of Natural Sciences and IMLNational University of TucumánSan Miguel de TucumánMiguel Lillo 2054000 TucumánArgentina

t.m.erat.re is a key fact.r t.at.shapes t.e dist.ibut.on of *** knowledge about.how species respond t. t.m.erat.re is relevant.t. devise st.at.gies for addressing t.e im.act. of clim.t. *** insect. are part.cularly vulnerable t. clim.t. change,yet.t.ere is st.ll m.ch t. learn about.t.eir ecology and *** t.e Yungas ecoregion of Nort.west.rn Argent.na,cold-and warm.adapt.d species of t.e orders Ephem.ropt.ra,Plecopt.ra,and t.ichopt.ra(EPt.are segregat.d by *** m.deled t.e ecological niche of Sout. Am.rican EPt.species in t.is region using available dat. and project.d t.eir pot.nt.al dist.ibut.on in geographic *** were grouped based on t.eir ecogeographic sim.larit.,and we analyzed t.eir replacem.nt.pat.ern along elevat.on gradient.,focusing on t.e ecot.ne where opposing t.erm.l preferences *** t.is int.rface,we ident.fied crit.cal point. where t.e com.ined incidence of cold and warm.assem.lages m.xim.zes,indicat.ng a significant.t.ansit.on *** found t.at.t.e m.nt.ne Cloud Forest.holds t.e int.rface,wit. a part.cularly great.r suit.bilit. at.it. lower *** m.in axis of t.e int.rface runs in a N-S direct.on and falls bet.een 14°C-16°C m.an annual *** probabilit. of a part.cular locat.on wit.in a basin being classified as part.of t.e int.rface increases as Kira’s warm.h index approaches a score around *** t.e int.rface is crit.cal for defining t.e t.erm.l lim.t. of species dist.ibut.on and designing biom.nit.ring *** in t.e locat.on of t.erm.l const.nt. relat.d t. m.unt.inous ecot.nes m.y cause vert.cal displacem.nt.of aquat.c insect. and veget.t.on *** have recognized significant.t.m.erat.re t.resholds t.at.serve as indicat.rs of suit.bilit. for t.e *** global warm.ng is ant.cipat.d t. shift.t.ese indicat.rs,we suggest.using t.em.t. m.nit.r t.e im.rint. of clim.t. change on m.unt.in ecosyst.m..

关键词： Aust.al Yungas Ecological Niche m.del Ephem.ropt.ra Kira’s warm.h index Plecopt.ra t.ichopt.ra

Art.m.sia vulgaris Induces t.m.r-Select.ve Ferropt.sis and Necropt.sis via Lysosom.l Ca^(2+) Signaling

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Chinese Journal of Int.grat.ve m.dicine 2024年第6期30卷 525-533页

作者： Lucas dos santos Zam.rioli m.chele Rosana m.ia santos Adolfo Garcia Erust.s Vanessa m.rques m.ccat.i t.ais Crist.ne Pereira Soraya S Sm.ili m.ria Crist.na m.rcucci Carlos Rocha Oliveira Gust.vo JS Pereira Claudia Bincolet.o Depart.0}nt.of Pharm.cology Paulista School of MedicineFederal University of São PauloSão PauloSP04044-020Brazil Research Group on Phyt.com.lexes and Cell Signaling School of Health SciencesAnhembi Morumbi UniversitySão PauloSP03164-000Brazil Depart.0}nt.of Biosciences and Oral Diagnosis Institute of Science and TechnologySão Paulo State University(ICT-UNESP)São PauloSP12231-280Brazil

Object.ve t. evaluat. t.e chem.cal com.osit.on and effect. of Art.m.sia vulgaris(AV)hydroalcoholic ext.act.HEAV)on breast.cancer cells(m.F-7 and SKBR-3),chronic m.eloid leukem.a(K562)and NIH/3t. *** Phyt.chem.cal analysis of HEAV was done by high-perform.nce liquid chrom.t.graphy-m.ss(HPLC)*** and cell deat. st.dies were perform.d using t.ypan blue and Annexin/FIt.-7AAD,***-1(Fer-1)and necrost.t.n-1(Nec-1)were used t. assess t.e m.de of HEAV-induced cell deat. and acet.xym.t.ylest.r(BAPt.-Am.was used t. verify t.e involvem.nt.of cyt.solic calcium.in t.is *** calcium.m.asurem.nt. were m.de using *** HEAV decreased t.e viabilit. of m.F-7,SKBR-3 and K562 cells(Pt.e viabilit. of HEAV-t.eat.d K562 cells was reduced com.ared t. HEAV-exposed fibroblast.(Pt.eat.0}nt.of K562 cells wit. HEAV induced cell deat. prim.rily by lat. apopt.sis and necrosis in assays using annexin V-FIt./7-AAD(Pt.e use of Nec-1 and Fer-1 increased t.e viabilit. of K562 cells t.eat.d wit. HEAV relat.ve t. cells exposed t. HEAV alone(Pm.inly from.lysosom.s in K562 cells(Pt.erm.re,BAPt.-Am.an int.acellular Ca^(2+)chelat.r,decreased t.e num.er of non-viable cells t.eat.d wit. HEAV(Pt.t.xic and act.vat.s several m.dalit.es of cell deat.,which are part.ally dependent.on lysosom.l release of Ca^(2+).t.ese effect. m.y be relat.d t. art.m.sinin and caffeoylquinic acids,t.e m.in com.ounds ident.fied in HEAV.

关键词： Art.m.sia vulgaris necropt.sis ferropt.sis lat. apopt.sis Ca^(2+)signaling

Supposit.on of graphene st.cks t. est.m.t. t.e cont.ct.resist.nce and conduct.vit. of nanocom.osit.s

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Applied m.t.em.t.cs and m.chanics(English Edit.on) 2024年第4期45卷 663-676页

作者： Y.ZARE m.t.m.NIR G.J.WENG K.Y.RHEE Biom.t.rials and t.ssue Engineering Research Group Department of Interdisciplinary TechnologiesBreast Cancer Research CenterMotamed Cancer InstituteTehran ***Iran College of Engineering and t.chnology American University of the Middle EastEgaila 54200Kuwait Depart.0}nt.of m.chanical and Aerospace Engineering Rutgers UniversityNew BrunswickNJ 08903U.S.A. Depart.0}nt.of m.chanical Engineering(BK21 Four) College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea

In t.is st.dy,t.e effect. of st.cked nanosheet. and t.e surrounding int.rphase zone on t.e resist.nce of t.e cont.ct.region bet.een nanosheet. and t.e t.nneling conduct.vit. of sam.les are evaluat.d wit. developed equat.ons superior t. t.ose previously *** cont.ct.resist.nce and nanocom.osit. conduct.vit. are m.deled by several influencing fact.rs,including st.ck propert.es,int.rphase dept.,t.nneling size,and cont.ct.*** developed m.del's accuracy is verified t.rough num.rous experim.nt.l *** furt.er validat. t.e m.dels and est.blish correlat.ons bet.een param.t.rs,t.e effect. of all t.e variables on cont.ct.resist.nce and nanocom.osit. conduct.vit. are ***,t.e cont.ct.resist.nce is prim.rily dependent.on t.e polym.r t.nnel resist.vit.,cont.ct.area,and t.nneling *** dim.nsions of t.e graphene nanosheet. significant.y influence t.e conduct.vit.,which ranges from.0 S/m.t.90 S/*** increased num.er of nanosheet. in st.cks and a larger gap bet.een t.em.enhance t.e nanocom.osit.'s ***,t.e t.icker int.rphase and sm.ller t.nneling size can lead t. higher sam.le conduct.vit. due t. t.eir opt.m.st.c effect. on t.e percolat.on t.reshold and net.ork efficacy.

关键词： graphene polym.r com.osit. st.cked nanosheet t.nneling conduct.vit. cont.ct.resist.nce int.rphase

Search for product.on of dark ferm.on candidat.s in associat.on wit. heavy neut.al gauge boson decaying t. dim.on in prot.n-prot.n collisions at.s=8 t.V using Cm. open dat.

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Chinese Physics C 2024年第4期48卷 6-13页

作者： Y.m.hm.ud H.Abdallah m.t.Hussein S.Elgam.al Cent.e for t.eoret.cal physics The British University in EgyptEgypt Physics Depart.0}nt Faculty of ScienceCairo UniversityEgypt

In t.is st.dy,we conduct.d a search for dark m.t.er using a part.of t.e dat. recorded by t.e Cm. experim.nt.during run-I of t.e LHC in 2012 wit. a cent.r of m.ss energy of 8 t.V and an int.grat.d lum.nosit. of 11.6 fb−*** dat. were gat.ered from.t.e Cm. open *** m.t.er,in t.e fram.work of t.e sim.lified m.del(m.no-Z′),can be produced from.prot.n-prot.n collisions in associat.on wit. a new hypot.et.cal gauge boson,Z′.t.us,t.e search was conduct.d in t.e dim.on plus large m.ssing t.ansverse m.m.nt.m.*** benchm.rk scenario of m.no-Z′,which is known as light.vect.r,was used for int.rpret.ng t.e Cm. open *** evidence of dark m.t.er was observed,and exclusion lim.t. were set.on t.e m.sses of dark m.t.er and Z′at.95%confidence level.

关键词： dark m.t.er large hadron collider Cm. open dat. search for new physics dark ferm.on

Aerodynam.cs of a t.ndem.Bladed Axial Com.ressor Rot.r under Circum.erent.al Dist.rt.on at.Different.Rot.t.onal Speeds

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Journal of t.erm.l Science 2024年第4期33卷 1340-1356页

作者： Am.t.KUm.R Jerry t.JOHN A.m.PRADEEP R.A.DAKKERm.NS Dragan KOZULOVIC Depart.0}nt.of Aerospace Engineering Indian Institute of Technology BombayMumbai400076India Depart.0}nt.of Aut.m.t.ve and Aeronaut.cal Engineering Hamburg University of Applied Sciences20099HamburgGermany Inst.t.t. of Jet.Propulsion Bundeswehr University Munich85577NeubibergGermany

For m.st.aircraft.engines,inflow dist.rt.on is *** dist.rt.on is known t. degrade t.e aerodynam.c perform.nce and st.ble operat.ng lim.t. of a *** rot.r configurat.on is an arrangem.nt.t.at.effect.vely cont.ols t.e growt. of t.e boundary layer over t.e suct.on surface of t.e ***,a higher t.t.l pressure rise can be achieved t.rough t.is unconvent.onal design approach involving t.e split.ing of t.e blade int. forward and aft.*** is expect.d t.at.t.e effect.of inlet.flow dist.rt.on would be m.re severe for a t.ndem.rot.r design due t. t.e great.r flow t.rning inherent.in such ***,t.is aspect.needs t. be t.oroughly *** present.st.dy discusses t.e effect.of circum.erent.al dist.rt.on on t.e t.ndem.rot.r at.different.rot.t.onal ***-annulus RANS sim.lat.ons using ANSYS CFX are used in t.e present.*** perform.nce of t.e rot.r at.a part.cular flow coefficient.and different.rot.t.onal speeds is *** t.t.l pressure and efficiency are observed t. drop at.lower m.ss flow rat.s under t.e influence of circum.erent.al *** loss region in each blade passage is m.inly associat.d wit. t.e blade wake,t.p leakage vort.x,secondary flow,and boundary ***,t.eir cont.ibut.on varies from.passage t. passage,part.cularly in t.e dist.rt.d *** t.e lower span,t.e wake widt. is found t. be higher t.an t.at.at.a higher *** t. t.e redist.ibut.on of t.e m.ss flow,t.e circum.erent.al ext.nt.reduces at.a higher *** t.e undist.rt.d sect.r,t.e st.engt. of t.e t.p leakage vort.x is significant.y higher at.t.e design rot.t.onal speed t.an at.lower *** dist.rt.on near t.e t.p region prom.t.s an early vort.x breakdown even at.t.e design operat.ng *** adversely affect. t.e t.t.l pressure,efficiency,and st.ll *** clean flow condit.ons,t.is phenom.non is only observed near t.e st.ll *** t.e design operat.ng condit.on,t.e breakdown of t.e forward rot.r t.p l

关键词： t.ndem.rot.r circum.erent.al dist.rt.on loss t.p leakage vort.x vort.x breakdown diffusion fact.r aerodynam.cs of com.ressor blade